Inverted microscope

Abstract

There is disclosed an inverted microscope comprising an objective lens disposed under a sample, a tube lens which is disposed in a light path of an observation light emitted from the objective lens and which forms the observation light into an image, an incident light illumination optical device which is disposed between the objective lens and the tube lens, and which introduces incident light illumination into the light path of the observation light, and an input/output port which is disposed between the incident light illumination optical device and the tube lens, and which splits a light flux from the light path of the observation light or introduces the light flux into the light path of the observation light.

What is claimed is:  
     
       1. An inverted microscope comprising: 
       an objective lens disposed under a sample;  
       a tube lens which is disposed in a light path of an observation light emitted from said objective lens and which forms said observation light into an image;  
       an incident light illumination optical device which is disposed between said objective lens and said tube lens, and which introduces incident light illumination into the light path of said observation light;  
       an input/output port which is disposed between said incident light illumination optical device and said tube lens, and which one of: (i) splits a light flux from the light path of said observation light and (ii) introduces the light flux into the light path of said observation light; and  
       an IR cut filter disposed to be attachable/detachable between said incident light illumination optical device and a light source.  
     
     
       2. An inverted microscope comprising: 
       an objective lens disposed under a sample;  
       a tube lens which is disposed in a light path of an observation light emitted from said objective lens and which forms said observation light into an image;  
       an incident light illumination optical device which is disposed between said objective lens and said tube lens, and which introduces incident light illumination into the light path of said observation light; and  
       an input/output port which is disposed between said incident light illumination optical device and said tube lens, and which one of: (i) splits a light flux from the light path of said observation light and (ii) introduces the light flux into the light path of said observation light;  
       wherein said input/output port is attachably/detachably mounted on said inverted microscope, and said input/output port includes:  
       an optical device,  
       switch means for inserting/removing said optical device into the light path of said observation light, and  
       an auxiliary apparatus mounting portion on which an auxiliary apparatus is mountable to one of: (i) receive the light flux split from the light path of said observation light by said optical device and (ii) to transmit the light flux inserted in the light path of said observation light.  
     
     
       3. The inverted microscope according to  claim 2 , further comprising: 
       an IR cut filter disposed to be attachable/detachable between said incident light illumination optical device and a light source.  
     
     
       4. The inverted microscope according to  claim 2 , further comprising: 
       a dovetail mechanism by which said input/output port is attachable/detachable.  
     
     
       5. The inverted microscope according to  claim 2 , wherein said input/output port further includes a second tube lens disposed between said optical device for the port and said auxiliary apparatus mounting portion. 
     
     
       6. The inverted microscope according to  claim 5 , wherein said second tube lens is replaceable with another tube lens which has a different magnification. 
     
     
       7. The inverted microscope according to  claim 2 , wherein said input/output port includes at least two mounting portions on which a photography apparatus is mounted. 
     
     
       8. An inverted microscope comprising: 
       an objective lens disposed under a sample;  
       tube lens which is disposed in a light path of an observation light emitted from said objective lens and which forms said observation light into an image;  
       an incident light illumination optical device which is disposed between said objective lens and said tube lens, and which introduces incident light illumination into the light path of said observation light; and  
       an input/output port which is disposed between said incident light illumination optical device and said tube lens, and which one of: (i) splits a light flux from the light path of said observation light and (ii) introduces the light flux into the light path of said observation light;  
       wherein said input/output port is attachably/detachably mounted on said inverted microscope, and said input/output port includes:  
       an optical device,  
       switch means for inserting/removing said optical device into the light path of said observation light, and  
       an auxiliary apparatus mounting portion on which an auxiliary apparatus is mountable to one of: (i) receive the light flux split from the light path of said observation light by said optical device and (ii) to transmit the light flux inserted in the light path of said observation light,  
       wherein said optical device forms two light paths, and  
       wherein said auxiliary apparatus mounting portion is disposed for said two light paths.